Improvement in crushing-rollers for ores



W' H' PLUMB;

Ore Crusherl No. 16,039; Patented Nov. 4, 1856.

UNITED STATES PATENT OFFICE.

IVILLIAM HENRY PLUME, OF NEV YORK, N. Y.

IMPROVEMENT IN CRUSHlNG-ROLLE'RS FOR ORES, &C.

Specification forming part of Letters Patent No. 16,039, dated November 4, 1856.

T0 all whom it Inrty concern:

Be it known that I, WILLIAM HENRY PLUME, of the city, county, and State of New York, have invented certain new and useful Improvements in Machinery for Crushing Quartz, which machinery is also applicable to other purposes; and I do hereby declare the following to be a full, clear, and exact description thereof, in which- Figure l is a plan. Figure 2 is a vertical section. The several parts on the two figures are designated by the same letters. Fig. 3 is an end elevation.

My improvement consists in combining a roller having` stationary bearings for its shafts with another of the same or different size, supported in one end of a frame that turns at its opposite end in journals that are made adjustable in relation to the bearings ot' the first-named roller, so that the positions of the two rollers can be varied to suit the circumstances for which they are intended, by which any crushing force can be exerted upon the material subjectedto the action of the machine.

The construction is as follows: On a suitable frame a I aiix the bearings b,which are massive iron castings forming the bearings for the journals of the roller c, and a seat b for the box d, in which the journal or pivot e of the framefturns. rlhese boxes d are so coupled with the seat l1 that it can be raised or. lowered or moved laterally for adjustment.

c a little above a horizontal line drawn through its axis, this point being adjusted higher or lower by the movable box d. It will be obvious from this arrangement that any amount ot pressure may be produced between the rollers depending upon the point of rotation of the frame and the point of impingement relatively. The nearer they approach a straight line drawn through the axis of roller c the more powerful the pressure becomes, While at all times the roller g can rise with sufficient resistance interposed between the rollers.

Having` thus fully described my improved Crusher, what I claim as my invention, and for which I desire to secure Letters Patent, 1s

-rlhe construction, combination, and arrangement ot the stationary and movable rollers adj usted to the Work to be done in the manner and for the purposes set forth.

XVM. HENRY PLUMB.

Witnesses:

S. C. SALIsBURY, H. GREENOUGH. 

